Contribution à la Conception et à la Réalisation des Configurations Compactes des Filtres SIW DGS pour les Applications de Télécommunications Spatiales

Abstract

the substrate integrated Waveguide (GIS in English SIW) is a very promising technique because it allows the use of the advantages of waveguides and planar transmission lines. This technology which significantly reduces production costs. The waveguide integrated into the substrate is a guided wave structure which has advantages with a high quality factor Q and excellent line-to-line insulation. The GIS technique has been widely used in the construction of passive components, such as couplers, dividers, filters, and phase shifters. This thesis effectively presents original unconventional filter structures made on the basis of SIW cavities (SubstrateIntegratedWaveguide) combined with the new mass plane technique known as Defective Soil Structure (DGS) which can be used for space applications in higher frequency. The filters designed have multifunctional characteristics such as multiple operating frequency bands, such as the S, C, X and Ku band.